e)On the male end of the stainless vent adapter, apply a ¼” wide bead of silicone approximately 1/2” from the end of the pipe.

f)Insert the male end of the stainless vent adapter into the boiler vent collar until it bottoms out.

g)Apply an additional bead of silicone over the outside of the joint and smooth out.

h)Replace and tighten the clamp on the vent collar.

i)Remove one (BWC150) or two (BWC225) of the #10 sheel metal screws on the top of the rear jacket panel and place the air intake box over the vent and onto the boiler.

j)Use the exposed holes to line up the air intake box and gasket.

k)Insert the concentric condensate collector into the stainless vent adapter and the air intake box until the bead on the collector bottoms out on the air intake box collar. Turn the fitting so that the threaded stub faces to the right.

l)Square up the air intake box and the foam rubber gasket to the boiler jacket and loosely attach the box to the rear jacket panel with one of the previously removed #10 sheet metal screws.

m)Drill a single 1/8” hole through one of the mounting holes on the opposite side of the air intake box and attach the box to the jacket with one of the #10 sheet metal screws. This will insure the rest of the mounting holes line up.

n)Drill 1/8” holes in through the remaining mounting holes and attach the air intake box and gasket to the boiler jacket with the remaining #10 sheet metal screws.

o)Apply pipe thread sealant tape (not supplied) to the 90° barbed hose fittings. Attach one to the condensate collector adapter and the other to the bottom of the tapped condensate trap plug. (Figures 1.8, 1.15)

p)Attach the condensate collector adapter to the threaded portion of pipe sticking out the side of the concentric condensate collector so that the hose barb is facing down. Slide one end of the 1/2” clear plastic tubing over the hose barb and attach the hose clamp.

q)Run the tubing down the right side panel and into the 1-3/8” knockout located on the lower right of the right side panel. Be sure to remove all burrs from the knockout to prevent the hose from being punctured.

r)Remove the plug and black gasket ring from the bottom of the condensate trap located under the boiler.

s)Reinstall the gasket ring onto the tapped condensate trap plug. Insert the tapped plug (which has the barbed hose fitting attached to it) in the base of the trap in place of the original plug. Slide the other end of the clear plastic tubing over the hose barb and attach the hose clamp. (Figure 1.15)

t)Allow the silicone to cure per the silicone manufacturer’s instructions before operating the boiler.

FIGURE 1.8: CONCENTRIC VENT

ADAPTER ASSEMBLY

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Crown Boiler BWC150/225 installation instructions Concentric Vent Adapter Assembly
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BWC150/225 specifications

The Crown Boiler BWC150/225 is a highly efficient and reliable hydronic heating system designed for both residential and commercial applications. Known for its advanced engineering, this boiler delivers exceptional performance while adhering to strict emission standards. Its versatility and durability make it a popular choice among homeowners and professionals alike.

One of the key features of the BWC150/225 model is its dual-fuel capability, allowing the user to operate the boiler on either natural gas or propane. This flexibility not only ensures convenience but also enhances energy efficiency. The boiler is equipped with a powerful 150,000 BTU input capacity for the BWC150 variant and 225,000 BTU for the BWC225, making it capable of heating larger spaces efficiently.

The crown boiler utilizes a fire-tube heat exchanger, which is designed to maximize heat transfer while minimizing the amount of energy lost during operation. This innovative design allows for a higher thermal efficiency rate compared to traditional designs. With an efficiency rating exceeding 90%, the BWC series can significantly lower heating costs, making it an economically sound investment.

Additionally, the BWC model features a fully modulating gas valve that adjusts the heat output based on the demand. This system not only improves comfort by maintaining consistent temperatures but also reduces energy consumption. It is also designed with advanced safety features, including an integrated low-water cutoff and flame rollout protection, ensuring safe operation under various conditions.

Another noteworthy characteristic of the Crown Boiler BWC150/225 is its user-friendly digital control panel. The easy-to-read display provides users with vital information such as temperature settings and system diagnostics, simplifying both operation and maintenance. The compact design of the unit allows for easy installation in tight spaces, making it suitable for various home layouts.

In summary, the Crown Boiler BWC150/225 stands out for its advanced features, energy efficiency, and safety technologies. With its dual-fuel capability, fire-tube heat exchanger, and user-friendly interface, it is an optimal choice for those seeking a robust and reliable heating solution. Whether for residential or commercial purposes, this model offers the performance and convenience that modern users require.
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